Improvement in pulp-tube machines



v G. BINNS, Jr. 1 Pulp Tub'e Machine.

No. 222,981. Patented Dec. 30, 1879.

WITNESSES INVENTOR 5 ij zw J/ W ORNEYS.

N. PE TERS. PHOTO-LITNOGRAFHER, WASHINGTON D C UNITED STATES PATENT OFFICE.

GEOBGE'BINNS, JR., or BROOKLYN, E. 1)., NEW YORK.

IMPROVEMENT IN PULP-TUBE MACHINES.

Specification forming part of Letters Patent No. 222,981, dated December 30, 1879; application filed March 21, 1879.

To all whom it may concern:

Be it known that 1, GEORGE BINNs, Jr., of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Machines for Making Pipes or Tubes from Pulp, of which the following is a specification.

Figure 1 is a front view of a part of the apparatus, partly in section, to show the con- Fig. 2 is a detail cross-section of struction. the same, taken through the broken line 00 a: at, Fig. 1.

Similar letters of reference indicate correspondin g parts.

The object of this invention is to furnish a process and mechanism for forming pipes or tubes of pulp, for use as non-conducting coverings for steam -pipes, generators, hot-air pipes, \vater'pipes, and gas-pipes, and for use as conductor-pipes for gas, steam, sewage, water, and other liquids.

The invention consists in the combination of the core or mandrel divided into two parts, and having sliding bearings, the revolving drying-rollers, one of which is journaled in slidin gbearin gs, the spring, and the cog-wheels with each other and with the frame, and in a core or mandrel, divided into two equal parts by a line passing diagonally through its axis and extending the entire length thereof, in combination with the pressure and drying rollers, as hereinafter more fully described.

The pulp is prepared in an ordinary pulpengine, from which it flows into a reservoir, whence it is taken by a wire cylinder and passed to an endless felt, where the water is pressed out by rollers, and from which it passes in a continuous sheet to, and is wound upon, reels.

From the reels, or directly from the endless felt, the sheet of pulp is led to-and wound around a core, shaft, mandrel, or pipe, A.

The core A is divided diagonally into two parts or halves, as shown in Figs. 1 and 2, for convenience in removing it from the pulp tube or pipe when formed.

The journals of the core A revolve in bearings B, which slide up and down in vertical slots in the frame 0. In the same slots in the frame 0, above and below the bearings B, are placed the bearings D, in which revolve the journals of the cylinders E. The two cylinders Eare thus placed, the one above and the other below the core A, so as to press and pack the pulp as it is wound upon the said core A.

The cylinders E are made hollow, and are heated by steam introduced into their cavities through their hollow journals, so as to dry the said pulp as it is deposited upon the said core.

To the journals of the cylinders E are attached gear-wheels F, the teeth of which mesh into the teeth of the geanwheel G, attached to the journal of the core A, and which are so formed as to move apart as the pulp thickens upon the said core A, without getting out of mesh with the said gear-wheel G of the core A. The teeth of one of the gear-wheels F mesh into the teeth of a gear-wheel, H, attached to the driving-shaft I, which revolves in bearings in the frame G, and has a pulley, J, attached to it to receive the driving-belt.

With this construction the cylinders E and the core A will be revolved in unison, so that there can be no slip to tear the pulp as it is being deposited upon the said core A.

The cylinders E are pressed against the core A by springs K,bearing against their bearings B, to equalize and increase the pressure upon the pulp as it is deposited upon the core A.

Having th us described my invention, 1 claim as new and desire to secure by Letters Patent 1. The combination, in an apparatus for making pipes and tubes from pulp, of the core A, divided into two parts, and having sliding bearings B, the revolving drying-rollers E E, the upper one of which is journaled in sliding bearings D, the spring K, and the cog-wheels F F Gr, with each other, and with the frame O, substantially as and for the purpose set forth.

2. The core or mandrel A, divided into two equal parts by a line passi ug diagonally through its axis, and extending the entirelength thereof, in combination with the pressure and drying cylinders E, substantially as and for the purpose set forth.

GEORGE BINNS, JR. Witnesses:

JAMES T. GRAHAM, I G. SEDGWIGK. 

